Valthor looked down with mingled awe and terror at the scene below hom. Once this had been a vast network of mines; now it was being transformed into a gigantic hivelike complex deep beneath the earth. Thousands upon thousands of the little robot men were working with their picks and shovels. Directing them were grotesque two-headed monsters with deadly atomic guns. And wandering amid the maze were green-fleshed creatures who had once been human. And somewhere, unseen but ever-present, inspecting Valthor even as he stood here, were the all-powerful, all-knowing beings he had come to battle...